Capstone Project

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Group 2019-36 Status completed
Title Portable/Wireless ECG
Supervisor Glenn Cowan
Description Wireless ECG’s that are wearable and accurate enough for FDA approval is hard to come by for patients; either the ECG system is not accurate enough or not comfortable enough to wear. The scope of our project is to build a 3 lead wireless ECG system that is wearable. It will be able to analyze the cycle of 5 waves an ECG consists of and provide feedback to the user based on irregularities within the waveform, and general knowledge such as heart rate via a phone application. The most important components of the 5 waves will be the QT intervals, the ST segments, and the periodicity of the QRS complex. If concerned with the feedback, the user can forward their graph to a doctor who can verify the results and provide further tests. The use of dry contact electrodes will be our method of acquiring the electrocardiography, ECG. In hospital care wet ECGs are common as it acts as an insulator between the skin and the electrode. Wet gel requires longer patient preparation, can be irritating for the skin, and it is a method that can be expendable. As we push towards a more independent use of ECGs, clients themselves will be able to stick electrode patches to their skin (how to strap/stick electrodes to the body is yet to be determined). The project will allow for users to constantly monitor their heart health, and use the results from their wearable ECG device to contact a doctor if the results are potentially concerning 1. Heart rate functionality: Measure the R waves from the ECG, using that to calculate the heart rate of the user 2. The QT interval represents the time during which the ventricles are stimulated and recover after the stimulation, this interval shortens at a faster heart rate and lengthens at a slower heart rate. We can use the QT interval then to analyze a user’s heart rate, if the QT interval reduces below a certain rate we can notify the user or doctor so the user is aware that their heart may not be functioning properly (weaker contractions, the heart is weaker). Patients with hereditary long QT interval are vulnerable to dangerous or rapid ventricular rhythms 3. The ST segment of the QRS complex can provide insights on potential heart attacks. If the ST-segment goes up or down (elevation or displacement) relative to the user’s baseline. The user can be alerted 4. We can check for irregularity of the QRS signal which can be an indication for atrial fibrillation. Willingness to collaborate with Sig.num Preemptive Healthcare to help develop their product
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Number of Students 4
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